Optical lens



FIG. 1 is perspective view of an optical lens showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is a sectional view taken along the line A-A of FIG. 3. 

CLAIM I claim the ornamental design for an optical lens, as shown and described. 